The Ricca Chemical yttrium AA standard with a composition of 96.55% water, 3.33% nitric acid and 0.12% yttrium oxide, is used to increase strength of alloys of aluminum and magnesium. It can be stored at a temperature of 15 to 30 degree C.

The Ricca Chemical yttrium ICP standard with a composition of 93.72% water, 5.06% nitric acid and 1.22% yttrium oxide, is suitable for research and laboratory use. It is used to increase strength of alloys of aluminum and magnesium. It can be stored at a temperature of 15 to 30 degree C.